Mastercard International Incorporated

Shubham Kumar

Chandan Garg

Aditya Koduri

Vikas Bishnoi

Jaipal Singh Kumawat

Shubham Bijawat

Puneet Vashisht

Apoorva Dixit

Ankur Arora

Anurag Aggarwal

Hardik Wadhwa

Shubhangi Sengar

Madhavi Sharma

Rajesh Chopra

Deepak Agarwal

Rahul Lamba

Puneet Keshtwal

Archit Umrao

Abhinav Thukral

Anand Pandey

Nikhat Parveen

Meenakshi Shandilya

Priya Gupta

Srinivas Reddy

Apeksha Malviya

Janarthanan Balakrishnan

The present invention relates to an optical fiber with improved bend performance and manufacturing method thereof. The optical fiber () comprises a core region () defined by a core refractive index profile () and a cladding region () surrounding the core region defined by a cladding refractive index profile (). Particularly, the core region has a first core () defined by a first core refractive index (RI) profile () and a first core RI max (Δpeak) and a second core () defined by a second core RI profile () and a second core RI max (Δcore). Moreover, the cladding region further comprises a first cladding () and a third cladding () composed of pure silica and a second cladding () composed of a down-doped silica, where the down-dopant is fluorine.

Optical fibers with improved bend performance and manufacturing method thereof

A method for improving consensus in a blockchain network through sampling includes: executing, by a processor of a blockchain node in a blockchain network that manages a blockchain, a script to identify a first sample comprised of a subset of nodes of a plurality of nodes in the blockchain network, wherein nodes included in the subset of nodes are randomly selected; performing, by the subset of nodes comprising the first sample, a first consensus operation among all nodes in the subset of nodes to identify a sample consensus block for the blockchain, where each node in the subset of nodes receives the sample consensus block; and repeating, in the blockchain network, executing the script and performing the first consensus operation for a plurality of additional samples, wherein nodes included in the subset of nodes for each additional sample are randomly selected.

Method and system for improved consensus using bootstrap resampling

The present disclosure provides a description of exemplary systems and methods for enabling faster proof-of-work in a distributed ledger. The methods and systems may include a processor which may generate a first hash having a first difficulty level as a first proof of work associated with a first plurality of selected transactions. The first hash not being accepted by a distributed ledger network. The processor may receive a second plurality of selected transactions and determine a second difficulty level for a second proof of work associated with the second plurality of selected transactions. The processor may compare the first difficulty level to the second difficulty level. In response to determining that the first difficulty level is less than the second difficulty level, the processor may generate a second hash as a second proof-of-work for the second plurality of selected transactions having a residual difficulty level.

Method and system of faster proof-of-work in distributed ledger

A method for ensuring precedence for the processing of a blockchain transaction to prevent loss of cryptographic currency includes receiving a new blockchain transaction by a blockchain node in a blockchain network, confirming the new blockchain transaction including identifying a precedence transaction that was previously conducted and stored in the blockchain that involves both blockchain wallets included in the new blockchain transaction, including the new blockchain transaction in a new block that is generated, and distributing the new block to additional nodes in the blockchain network for confirmation and addition to the blockchain.

Method and system for prevention of lost currency in blockchain networks to missing wallets

A system and computer-implemented method includes the operations of transmitting a cold reset signal to a multiple-funding source payment card and receiving a first answer-to-reset message therefrom. The first answer-to-reset message includes governing rules for performing a single-swipe transaction. The operation also includes receiving payment account details for a first payment account in accordance with the governing rules. A first PIN associated with the first payment account is input by a cardholder and a first payment authorization request message for approval of the single-swipe transaction is transmitted. Upon receipt of a payment declined response message, a warm reset signal is transmitted to the payment card. A second answer-to-reset message is received including payment account details for a second payment account. The cardholder inputs a second PIN associated with the second payment account and a second payment authorization request message for approval of the single-swipe transaction is transmitted.

Systems and methods for a payment card with multiple funding sources

A method for awarding blockchain mining fees based on recycling efforts includes: receiving recycling data for each of a plurality of mining systems including an amount of recycled materials associated with the respective mining system; receiving validation data for each mining system from third party entities including, for each mining system, a confirmation of the amount of recycled materials for the respective recycling data; selecting one of the mining systems, which is weighted based on the amount of recycled materials for the respective mining system compared to a total amount of recycled materials for all mining systems; and receiving a new block generated by the selected mining system including a block header and a plurality of blockchain data values including a blockchain data value corresponding to a blockchain transaction for payment of mining fees for the new block to a wallet associated with the selected mining system.

Method and system for using recycling to improve blockchain mining

The invention relates to methods and systems for reducing user interventions necessary for authentication of electronic payment transactions. In an embodiment the invention comprises (i) receiving from a POS terminal a payment transaction request, and information identifying a first payment card for implementing the payment transaction request, (ii) receiving from a wireless access point, information corresponding to a set of payment cards enrolled with a mobile payment wallet implemented on said mobile communication device, (iii) determining whether received information corresponding to the first payment card matches received information corresponding to any payment card within the set of payment cards enrolled with the mobile payment wallet, and (iv) implementing the requested payment transaction based on the first payment card.

Methods, systems and computer program products for transaction authentication

A method for improving consensus in a blockchain network through decentralized grouping includes: identifying, by each node of a plurality of nodes in a blockchain network that manages a blockchain, a plurality of groups, where each is comprised of a subset of nodes; generating, by each node in each subset of nodes, a new block for the blockchain; performing, by each subset of nodes, a first consensus operation among all nodes in the subset of nodes for the new block generated by in the subset of nodes to identify a group consensus block, where each node in the subset of nodes receives the group's group consensus block; and performing, by the blockchain network, a second consensus operation among all groups for the identified group consensus block to identify an overall consensus block, where a majority of groups of the plurality of groups receives the overall consensus block.

Method and system for grouping of blockchain nodes for greater consensus

The disclosed subject matter includes methods, systems, and networks for authentication based on physical characteristics of a mobile device. A computer-implemented method performed by a payment network includes receiving an image of a part of a mobile device from an image capturing device that communicates with the payment network, wherein the mobile device includes digital card data of a customer. The computer-implemented method may also include comparing a physical condition of the part of the mobile device shown in the received image to the physical condition of the part of the mobile device shown in a stored image. In addition, the computer-implemented method may include authenticating or declining a transaction involving the digital card data based on the comparison of the physical condition of the part of the mobile device in the received image and the stored.

Methods, systems, and networks for authentication based on physical condition of a mobile device

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Haryana, India

Shubham Kumar